Very large, 14X20 with a large table & 4 chairs in it. Many campers use it like a tent because it is up off of the ground ... cement floor... screened all the way around for nice breeze but no bugs! Bring cots or bed rolls to sleep on. It has electric outlets for coffee pots, fans or heaters. One corner of the room is enclosed for privacy and you can string a sheet across that area to change clothes or something.The shower house / bathroom is walking distance from it, but not IN it. It is located directly in front of the office, so we can keep an eye on it while you are away from the campground. There is a place to put a pad lock (that you need to bring) on the door to leave your stuff in it while you are off touring the Hill Country. It is $40 per night based on 4 people, & $7.50 for each additional person.